Nobody worry, KayossZero, stop!theradio and Derangel all said the file is OK and I was just in here trying to stir up trouble! Special thanks to stop!theradio for going out of his way to let me know I didn't know what I was talking about.
Heck, looks like I get to quote myself now:
I didn't say you were trying to stir up trouble. All I was commenting on was the name that popped up on your screen and based on experience from seeing false positives before with hacked PhysX drivers. Good job being a jerk though and putting words in my mouth.